1995-02-18 01:27:10 +00:00
|
|
|
/* i80386 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
|
|
|
|
|
the result from a second limb vector.
|
1998-03-02 18:02:11 +00:00
|
|
|
Copyright (C) 1992, 1994, 1997, 1998 Free Software Foundation, Inc.
|
1997-03-31 22:56:24 +00:00
|
|
|
This file is part of the GNU MP Library.
|
1995-02-18 01:27:10 +00:00
|
|
|
|
1997-03-31 22:56:24 +00:00
|
|
|
The GNU MP Library is free software; you can redistribute it and/or modify
|
|
|
|
|
it under the terms of the GNU Library General Public License as published by
|
|
|
|
|
the Free Software Foundation; either version 2 of the License, or (at your
|
|
|
|
|
option) any later version.
|
1995-02-18 01:27:10 +00:00
|
|
|
|
1997-03-31 22:56:24 +00:00
|
|
|
The GNU MP Library is distributed in the hope that it will be useful, but
|
|
|
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
|
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
|
|
|
|
|
License for more details.
|
1995-02-18 01:27:10 +00:00
|
|
|
|
1997-03-31 22:56:24 +00:00
|
|
|
You should have received a copy of the GNU Library General Public License
|
|
|
|
|
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
|
|
|
|
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
|
|
|
|
MA 02111-1307, USA. */
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
INPUT PARAMETERS
|
|
|
|
|
res_ptr (sp + 4)
|
|
|
|
|
s1_ptr (sp + 8)
|
1997-06-13 22:46:42 +00:00
|
|
|
sizeP (sp + 12)
|
1995-02-18 01:27:10 +00:00
|
|
|
s2_limb (sp + 16)
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "sysdep.h"
|
|
|
|
|
#include "asm-syntax.h"
|
|
|
|
|
|
|
|
|
|
#define res_ptr edi
|
|
|
|
|
#define s1_ptr esi
|
1997-06-13 22:46:42 +00:00
|
|
|
#define sizeP ecx
|
1995-02-18 01:27:10 +00:00
|
|
|
#define s2_limb ebp
|
|
|
|
|
|
1998-03-02 18:02:11 +00:00
|
|
|
.text
|
|
|
|
|
ENTRY(__mpn_submul_1)
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
INSN1(push,l ,R(edi))
|
|
|
|
|
INSN1(push,l ,R(esi))
|
|
|
|
|
INSN1(push,l ,R(ebx))
|
|
|
|
|
INSN1(push,l ,R(ebp))
|
|
|
|
|
|
|
|
|
|
INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,20))
|
|
|
|
|
INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,24))
|
1997-06-13 22:46:42 +00:00
|
|
|
INSN2(mov,l ,R(sizeP),MEM_DISP(esp,28))
|
1995-02-18 01:27:10 +00:00
|
|
|
INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,32))
|
|
|
|
|
|
1997-06-13 22:46:42 +00:00
|
|
|
INSN2(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,sizeP,4))
|
|
|
|
|
INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,sizeP,4))
|
|
|
|
|
INSN1(neg,l ,R(sizeP))
|
1995-02-18 01:27:10 +00:00
|
|
|
INSN2(xor,l ,R(ebx),R(ebx))
|
|
|
|
|
ALIGN (3)
|
1997-03-31 22:56:24 +00:00
|
|
|
L(oop):
|
1997-06-13 22:46:42 +00:00
|
|
|
INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,sizeP,4))
|
1995-02-18 01:27:10 +00:00
|
|
|
INSN1(mul,l ,R(s2_limb))
|
|
|
|
|
INSN2(add,l ,R(eax),R(ebx))
|
|
|
|
|
INSN2(adc,l ,R(edx),$0)
|
1997-06-13 22:46:42 +00:00
|
|
|
INSN2(sub,l ,MEM_INDEX(res_ptr,sizeP,4),R(eax))
|
1995-02-18 01:27:10 +00:00
|
|
|
INSN2(adc,l ,R(edx),$0)
|
|
|
|
|
INSN2(mov,l ,R(ebx),R(edx))
|
|
|
|
|
|
1997-06-13 22:46:42 +00:00
|
|
|
INSN1(inc,l ,R(sizeP))
|
1997-03-31 22:56:24 +00:00
|
|
|
INSN1(jnz, ,L(oop))
|
1995-02-18 01:27:10 +00:00
|
|
|
INSN2(mov,l ,R(eax),R(ebx))
|
|
|
|
|
|
|
|
|
|
INSN1(pop,l ,R(ebp))
|
|
|
|
|
INSN1(pop,l ,R(ebx))
|
|
|
|
|
INSN1(pop,l ,R(esi))
|
|
|
|
|
INSN1(pop,l ,R(edi))
|
|
|
|
|
ret
|
1998-03-02 18:02:11 +00:00
|
|
|
END(__mpn_submul_1)
|
